1 Kings 11:27

And this was the cause that he lifted up his hand against the
king
The occasion of it, his being advanced to some posts under Solomon, which elated him, and what passed between him and the prophet Ahijah, after related:

Solomon built Millo, and repaired the breaches of the city of David his
father:
in the oversight of which, it is supposed by the Jews, he employed this man, who reproached him for doing these works; building an house in Millo for Pharaoh's daughter, and stopping up the passage to the city of David, and the people's access thither upon occasion.